Electric cylinder with rotatable piston rod

Abstract

The utility model discloses an electric cylinder with a rotatable piston rod, relates to the technical field of electric cylinders, and aims to solve the problems that in the prior art, piston rods of existing electric cylinders are mostly fixed and cannot rotate, when a jacked workpiece needs to be rotated, a rotating mechanism needs to be installed, and use is not convenient enough. A second stabilizer is installed at one end of the cylinder body, a rotator is installed on one side of the second stabilizer, a rotating piston rod is arranged in the cylinder body, a jacking piston rod is arranged in the rotating piston rod, and the rotating piston rod is rotationally connected with the jacking piston rod; a rotating base connected with the rotating piston rod is arranged in the rotating device, an embedded sliding groove is formed in the surface of the rotating piston rod, a clamping foot meshed with the embedded sliding groove is arranged on the inner side of the rotating base, a large gear is installed on one side of the rotating base, and a transmission gear meshed with the large gear is arranged in the rotating device.

Description

Technical Field

[0001] The utility model relates to the technical field of electric cylinders, in particular to an electric cylinder with a rotatable piston rod. Background Art

[0002] Electric cylinders are products designed for continuous motion, low to high loads (usually high speeds), and can be cycled multiple times throughout their service life. These products have extremely high positioning accuracy and controllability, and can achieve precise motion control with loads ranging from several kilograms to 50 tons.

[0003] However, the piston rods of most current electric cylinders are fixed and cannot rotate. When the lifted workpiece needs to be rotated, a rotating mechanism needs to be installed, which is not convenient to use. Therefore, the market urgently needs to develop an electric cylinder with a rotatable piston rod to help people solve the existing problem. Utility Model Content

[0004] The purpose of the present utility model is to provide an electric cylinder with a rotatable piston rod, so as to solve the problem raised in the above background technology that the piston rods of current electric cylinders are mostly fixed and cannot rotate. When the lifted workpiece needs to be rotated, a rotating mechanism needs to be installed, which is not convenient to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric cylinder with a rotatable piston rod, comprising a cylinder body, a second stabilizer is installed at one end of the cylinder body, a rotator is installed on one side of the second stabilizer, a rotating piston rod is provided in the cylinder body, a lifting piston rod is provided inside the rotating piston rod, the rotating piston rod is rotatably connected to the lifting piston rod, a rotating seat connected to the rotating piston rod is provided in the rotator, an inlay groove is provided on the surface of the rotating piston rod, a card foot is provided on the inner side of the rotating seat to engage with the inlay groove, a large gear is installed on one side of the rotating seat, a transmission gear engaged with the large gear is provided in the rotator, a driving gear is engaged with the transmission gear, and a second servo motor for driving the driving gear to rotate is provided on the outer side of the rotator.

[0006] Through the above technical solution, the traditional electric cylinder piston rod structure is designed into a split structure, including a rotating piston rod and a lifting piston rod. The lifting piston rod is arranged inside the rotating piston rod. The rotating piston rod can rotate, and a long inlay groove is provided on the surface of the rotating piston rod. The card pin in the rotating seat is embedded in the inside of the inlay groove, so that the second servo motor drives the rotating seat to drive the rotating piston rod to rotate, so that the ejected piston rod can be rotated. When the lifted workpiece needs to be rotated, there is no need to install a rotating mechanism, thereby improving the convenience of use of this electric cylinder.

[0007] In a preferred example, the present invention can be further configured as follows: a connector is connected between the rotating piston rod and the lifting piston rod, the rotating piston rod is rotatably connected to the connector, one end of the lifting piston rod is fixedly connected to a screw seat, and a screw threadedly connected to the screw seat is provided in the cylinder body.

[0008] Through the above technical solution, the rotation of the screw rod is used to drive the screw rod seat to move laterally, and the screw rod seat drives the lifting piston rod to move laterally.

[0009] In a preferred example, the present invention can be further configured as follows: a first stabilizer is installed at one end of the cylinder body, a ball bearing is provided in the first stabilizer, and the screw rod is rotatably connected to the ball bearing.

[0010] Through the above technical solution, the first stabilizer is used to make the screw rod more stable when rotating.

[0011] In a preferred example, the present invention can be further configured as follows: a linear bearing is provided in the second stabilizer, and the rotating piston rod is slidably connected to the linear bearing.

[0012] Through the above technical solution, the second stabilizer is used to make the movement of the rotating piston rod more stable.

[0013] In a preferred example, the present invention can be further configured as follows: a transmission box is installed on one side of the first stabilizer, a driven wheel connected to the screw rod is provided in the transmission box, a driving wheel transmission-connected to the driven wheel is provided in the transmission box, and a first servo motor for driving the driving wheel to rotate is provided on the outside of the first stabilizer.

[0014] Through the above technical solution, the first servo motor drives the driving wheel to rotate, and the driving wheel drives the lead screw to rotate through the driven wheel.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model designs the traditional electric cylinder piston rod structure into a split structure, including a rotating piston rod and a lifting piston rod. The lifting piston rod is arranged inside the rotating piston rod, and the rotating piston rod can rotate. The surface of the rotating piston rod is provided with a long inlay groove, which is inlaid with the card pin in the rotating seat into the inside of the inlay groove, so that the second servo motor drives the rotating seat to drive the rotating piston rod to rotate, so that the ejected piston rod can be rotated. When the lifted workpiece needs to be rotated, there is no need to install a rotating mechanism, thereby improving the convenience of use of this electric cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the internal structure of an electric cylinder with a rotatable piston rod according to the present invention;

[0018] Figure 2 It is an enlarged schematic diagram of point A in the figure of the present utility model;

[0019] Figure 3 It is an enlarged schematic diagram of point B in the figure of the present invention.

[0020] In the figure: 1. Cylinder body; 2. Transmission box; 3. First servo motor; 4. First stabilizer; 5. Rotating piston rod; 6. Lifting piston rod; 7. Ball bearing; 8. Driving wheel; 9. Driven wheel; 10. Screw; 11. Second stabilizer; 12. Linear bearing; 13. Rotator; 14. Rotating seat; 15. Large gear; 16. Inlay slide; 17. Transmission gear; 18. Driving gear; 19. Second servo motor; 20. Connector; 21. Screw seat. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0024] See also Figure 1 and Figure 2The utility model provides an embodiment: an electric cylinder with a rotatable piston rod, comprising a cylinder body 1, a second stabilizer 11 is installed at one end of the cylinder body 1, a rotator 13 is installed on one side of the second stabilizer 11, a rotating piston rod 5 is arranged in the cylinder body 1, a lifting piston rod 6 is arranged inside the rotating piston rod 5, the rotating piston rod 5 is rotatably connected to the lifting piston rod 6, a rotating seat 14 connected to the rotating piston rod 5 is arranged in the rotator 13, the surface of the rotating piston rod 5 is provided with an inlaid slide groove 16, the rotating seat 14 A card foot is provided on the inner side to engage with the inlaid slide groove 16, a large gear 15 is installed on one side of the rotating seat 14, a transmission gear 17 engaged with the large gear 15 is provided in the rotator 13, and a driving gear 18 is engaged and connected on one side of the transmission gear 17. A second servo motor 19 for driving the driving gear 18 to rotate is provided on the outer side of the rotator 13, the transmission gear 17 is rotatably connected to the rotator 13 through the shaft seat, the rotating seat 14 is rotatably connected to the rotator 13 through the shaft seat, and the large gear 15 is fixedly connected to the rotating seat 14.

[0025] See also Figure 3 A connector 20 is connected between the rotating piston rod 5 and the lifting piston rod 6. The rotating piston rod 5 is rotatably connected to the connector 20. One end of the lifting piston rod 6 is fixedly connected to a screw seat 21. A screw 10 threadedly connected to the screw seat 21 is provided in the cylinder body 1, and the screw seat 21 is slidably connected to the cylinder body 1.

[0026] See also Figure 3 A first stabilizer 4 is installed at one end of the cylinder body 1, a ball bearing 7 is provided in the first stabilizer 4, and the screw rod 10 is rotatably connected to the ball bearing 7.

[0027] See also Figure 2 A linear bearing 12 is provided in the second stabilizer 11 , and the rotating piston rod 5 is slidably connected to the linear bearing 12 .

[0028] See also Figure 1 A transmission box 2 is installed on one side of the first stabilizer 4, and a driven wheel 9 connected to the screw rod 10 is provided in the transmission box 2. A driving wheel 8 connected to the driven wheel 9 is provided in the transmission box 2, and a first servo motor 3 for driving the driving wheel 8 to rotate is provided on the outside of the first stabilizer 4.

[0029] Working principle: When in use, the first servo motor 3 is used to drive the driving wheel 8 to rotate, and the driving wheel 8 drives the screw 10 to rotate through the driven wheel 9, and the rotation of the screw 10 drives the screw seat 21 to move laterally, and the screw seat 21 drives the jacking piston rod 6 and the rotating piston rod 5 to move laterally, thereby completing the jacking action, and the second servo motor 19 is used to drive the driving gear 18 to rotate, and the driving gear 18 drives the large gear 15 to rotate through the transmission gear 17, and the large gear 15 drives the rotating seat 14 to rotate, and the rotating seat 14 drives the rotating piston rod 5 to rotate through the inlaid groove 16. The length of the inlaid groove 16 set on the surface of the rotating piston rod 5 is the same as the jacking length, so that the rotating piston rod 5 can rotate continuously during the jacking action, so that the rotation action and the jacking action do not interfere with each other.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An electric cylinder with a rotatable piston rod, comprising a cylinder body (1), characterized in that: A second stabilizer (11) is installed at one end of the cylinder body (1), a rotator (13) is installed at one side of the second stabilizer (11), a rotating piston rod (5) is provided in the cylinder body (1), a lifting piston rod (6) is provided inside the rotating piston rod (5), the rotating piston rod (5) is rotatably connected to the lifting piston rod (6), a rotating seat (14) connected to the rotating piston rod (5) is provided in the rotator (13), and the surface of the rotating piston rod (5) is provided There is an inlay slide (16), the inner side of the rotating seat (14) is provided with a card foot engaged with the inlay slide (16), one side of the rotating seat (14) is installed with a large gear (15), the rotating device (13) is provided with a transmission gear (17) engaged with the large gear (15), one side of the transmission gear (17) is engaged with a driving gear (18), and the outer side of the rotating device (13) is provided with a second servo motor (19) for driving the driving gear (18) to rotate.

2. The electric cylinder with a rotatable piston rod according to claim 1, characterized in that: A connector (20) is connected between the rotating piston rod (5) and the lifting piston rod (6); the rotating piston rod (5) and the connector (20) are rotatably connected; one end of the lifting piston rod (6) is fixedly connected to a screw seat (21); and a screw (10) threadedly connected to the screw seat (21) is provided in the cylinder body (1).

3. The electric cylinder with a rotatable piston rod according to claim 2, characterized in that: A first stabilizer (4) is installed at one end of the cylinder body (1), a ball bearing (7) is provided in the first stabilizer (4), and the screw rod (10) is rotatably connected to the ball bearing (7).

4. The electric cylinder with a rotatable piston rod according to claim 1, characterized in that: A linear bearing (12) is provided in the second stabilizer (11), and the rotating piston rod (5) is slidably connected to the linear bearing (12).

5. The electric cylinder with a rotatable piston rod according to claim 3, characterized in that: A transmission box (2) is installed on one side of the first stabilizer (4), a driven wheel (9) connected to the screw rod (10) is provided in the transmission box (2), a driving wheel (8) connected to the driven wheel (9) is provided in the transmission box (2), and a first servo motor (3) for driving the driving wheel (8) to rotate is provided on the outer side of the first stabilizer (4).

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